πρόπειρα
From LSJ
νόησε δὲ δῖος Ὀδυσσεὺς σαίνοντάς τε κύνας, περί τε κτύπος ἦλθε ποδοῖιν → godly Odysseus heard the fawning of dogs, and on top of that came the beat of two feet
English (LSJ)
ἡ,
A previous trial or venture, ἐν Ἀθηναίοισι τὴν πρόπειραν ποιέεσθαι, Lat.periculum facere in . ., Hdt.9.48; π. ποιεῖσθαι εἰ . . Th.3.86; π. τινὸς λαμβάνειν Ael.NA8.22; of a trial in athletic exercises, IG14.1102.16 (pl.).